Tutorials/Acquiring a conduit

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This tutorial is meant to show you, the player, how to acquire a conduit.

Heart of the Sea[edit]

Heart of the Sea items cannot be farmed. They generate only in buried treasure chests, which are difficult to find.

Step 1: Treasure maps[edit]

Buried treasure maps can be found in shipwrecks and underwater ruins chests. These structures can be found just about everywhere and they are usually marked with bubble columns and drowned. Before diving down, a player should secure a way to breathe underwater. This can be done with doors,‌[Java Edition only] turtle shells, water breathing potions, and bubble columns.

Optionally, the player can feed a nearby dolphin, which will lead the player to a structure with treasure.

Step 2: Following the map[edit]

Buried treasure maps are usually blank with a white indicator dot. This shows where the player is in relation to the buried treasure. Remember that upwards on the map is north and rightwards on the map is east. As the player gets closer to the treasure, the indicator dot will increase in size until they start filling in map features. Traveling may involve a long boat ride. Upon reaching the red "X" use a shovel to start digging 2×2 or 2×3 around that area to find the treasure chest. A buried treasure chest always contains a heart of the sea.

Nautilus shells[edit]

Depending on your setup, obtaining eight nautilus shells could be tedious.

Method 1: Fishing[edit]

Fishing is practical if you build an AFK fish farm. Fishing this way will also yield fishing rods (some enchanted). Some fish farms are cheap and easy, so the biggest hurdle is AFK waiting time. The odds of receiving a nautilus shell from fishing with an unenchanted rod are 0.7%.

Method 2: Drowned[edit]

Drowned have a chance to drop nautilus shells, but ease of obtaining them depends on the Edition.

  • Bedrock Edition: Drowned have an 8% chance to spawn holding a nautilus shell. It carries the nautilus shell in the offhand so it is a guaranteed drop. Also, converting zombies into drowned resets the drop counters, giving newly-converted drowned the same chance to spawn with a nautilus shell. Therefore, nautilus shells are most easily obtained conduit ingredient in Bedrock Edition. A Bedrock survival-mode drowned farm will produce more nautilus shells than a player will need.
  • Java Edition: Drowned have a 3% chance to spawn carrying a nautilus shell. If they do, they are guaranteed to drop it. Unfortunately, only naturally-spawned drowned carry nautilus shells; zombies converted to drowned do not.

Method 3: Trading[edit]

Another way to obtain nautilus shells is via trading with a wandering trader. A wandering trader can spawn anywhere after one in-game day and has a chance of offering a nautilus shell as one of their trades. One nautilus shell costs five emeralds, so obtaining eight nautilus shells will require spending 40 emeralds. Despite costing many emeralds, this method is the fastest way to obtain 8 nautilus shells.‌[BE & JE only]


Prismarine can be the most difficult ingredient to obtain if the player does not already have a guardian farm. Sources of prismarine or its crafting materials come from ocean monuments and Ocean Ruins. Prismarine and sea lanterns can also be found as part of underwater ruins, but not every ruin generates sea lanterns or prismarine.

To get started, The top two layers closest to the ocean surface will yield 16 prismarine blocks and 4 sea lanterns. If you're lucky, the top of the ocean monument will be close to the sea surface. You need only 16 prismarine blocks to construct a minimal activation frame to create an initial conduit. You can also use 180 blocks of sand to surround the top structure completely, allowing you to mine further down to get 12 more prismarine blocks of the top structure.

Step 1: Craft a conduit[edit]

Ironically, it is easier to get the materials to fully power a conduit if a conduit is used. A conduit can be crafted with 8 natilus shells and heart of the sea. To make it functional, you need a minimum of 16, and up to 42 prismarine or sea lantern blocks. Each ingredient has its own section.

Ingredients Crafting recipe
Nautilus Shell +
Heart of the Sea

Step 2: Get temporary underwater breathing[edit]

In order to acquire enough prismarine, the player must secure a way to breathe underwater. The best way is to get into an ocean monument and place a conduit strategically to give the player conduit power. Finding such a room will likely take time, so it would be best if the player secures a temporary way to breathe underwater. This can be done with bubble columns, non-waterloggable non-solid blocks such as doors,‌[Java Edition only] Respiration and Aqua Affinity enchantments, and turtle shells. The room to find must have at least 16 prismarine or sea lanterns in any shape around the outline of a 5x5x5 cube centered on the conduit. Once it activates, it will grant the Conduit Power effect, which allows the player to breathe indefinitely, see better, and mine faster underwater.

A conduit, activated.

Step 3: Obtain prismarine[edit]

Prismarine can be obtained from the guardians themselves and from the structure of the monument. The guardians can be a nuisance and the mining fatigue from elder guardians can make mining impossible. For these purposes, it is best to bring building materials that can be broken instantly such as slime blocks and scaffolding‌[BEPS4 & JE only]. Killing guardians is much easier if the player has a trident enchanted with Impaling and Loyalty. A Riptide-enchanted trident or Depth Strider-enchanted boots are also helpful.

The only way to break the monument structure with elder guardians in the way is to detonate TNT or Underwater TNT. To do this effectively, place a gravity block such as sand on top of the TNT. When it ignites, it turns into an entity, causing the gravity block to fall inside it. When the TNT explodes, it will destroy some of the prismarine and leave some items. Without the the aid of a gravity block, regular TNT damages mobs without destroying underwater blocks, while Underwater TNT can damage mobs and destroy block without a gravity block.